Electret microphone by jonnor 3d model
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Electret microphone by jonnor

Electret microphone by jonnor

by Thingiverse
Last crawled date: 3 years ago
Project homepage
Demo video on Youtube
Has body diameter of 20.5 mm (13/16 inch), same as many commercial elecret/measurement microphones.
For compatibility with accessories etc.
Vitamins required:
1x 9.5 mm electret microphone capsule
1x 1uF-100uF capacitor. Polarized OK
1x AA battery
For usage, hook up with jack cable (6.3mm 1/8inch) to a mixer/recorder/sound-card with preamp.
Future versions might include an integrated pre-amp circuit.
Suitable mic capsule
Designed for printing with ProtoPasta Conductive PLA. Dual-extrusion not required. Will probably work with filaments with less resistance as well.
Alternatively, one could use single-core copper conductors ~1.5mm diameter put into the channels manually (soldered to components). Would need to replace the thinnest trace in the top with a 1k-3.3k Ohm resitor, and probably tweak the springs for the jack socket.

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